Rotary stacker.



R. T. DYE.

ROTARY STAGKER. I APPLICATION FILED AUG. 7, 1908.

909, 1 66, Patented Jan. 12, 1909.

2 BHEBTS-SHEET 1.

animator,

R. T- DYE.

ROTARY STAGKER.

APPLICATION rum) we. 1, 190a.

909,166, Patented Jan. 12,1909.

2 SHEETS-SHEET 2.

Ejmnmtoz ROBERT T. DYE, OF LAGLEDE, MISSOURI.

ROTARY S Specification of Letters Patent.

TAGKER.

Patented Jan. 12, 1909.

Application filed August 7, 1908. Serial No. 447,473.

To all whom it may concern: I

Be it known that 1, ROBERT T. DYE, a citizen of the United States, residing at Laclede, in the county of Linn and State of Missouri, have invented a new and useful Rotary Stacker, of which the following is a specification.

This invention has relation to rotary stackers, and it consists in the novel construction and arrangement of its parts, as hereinafter shown and described.

The object of the present invention is to provide a stacker of the character indicated, which is of compact and durable structure and arrangement, and which consists of a rotatable mast mounted upon runners and a boom pivotally attached to the said mast and adapted to swing laterally as the said mast rotates. A cradle is pivotally connected with one end of the said boom, and a counterbalancing means is attached to the opposite end of the boom. A lever mechanism is attached to the mast and is adapted. to be swung laterally for turning the mast. A catch is pivotally attached to the said lever mechanism and is adapted to be held in fixed position with relation to the same by a laterally disposed lug, which normally lies transversely across the upper edge of the said catch. A cable is attached at one end to the free end of the said catch and passes over a pul ley mounted at the top of the mast, then under a pulley located. at a point between the mast and the said cradle and is connected with the said cradle at its opposite end. A hoisting cable is attached at one end to the said mast in the vicinity of the base thereof and passes over pulley-sheaves located at the end of the boom, and which serve as the counterbalancing means above referred to, and the said hoisting cable then passes around pulleys located in a block mounted upon a ring which is attached to the lower end portion of the said nast. The said hoisting cable terminates in a horizontal run to which a draft animal or animals may be attached, and the last said run of the cable passes under a pulley which is located upon the frame of the runners up on which the mast is mounted-and a spring-actuated bell-crank lever is also located upon the said frame and is adapted to swing in contact with the hor1- zontal run of the said hoisting cable and form a means for preventing the same from moving towards the mast after the said hoisting cable has been drawn out.

In the accompanying drawings :Figure 1 1s a perspective view of the stacker. Fig. 2 1s a side elevation of the same, showing the cradle thereof in elevated position in heavy.

lines, and in dumping position in dotted lines, and Fig. 3 is a side elevation of the lower portion of the mast, showing its support in section.

The stacker consists ofthe runners 1, 1 which are connected together at their end portions by the transversely disposed sills, 2, 2. The bolster 3 is mounted upon the upper edges and at points intermediate of the ends of the said runners 1, 1. The socket 4 is mounted upon the bolster 3 and is provided with the spindle 5 which is journaled for rotation in a recess or perforation provided in the said bolster 3. The lower end of the mast 6 rests in the socket 4. The annular ring 7 surrounds the said mast 6 at a pointintermediate of the ends thereof and is provided with the inclined lugs 8. The upper ends of the braces 9 are secured to the lugs 8, while the lower ends of the said braces are secured to the inner sides of the runners 1, 1. The braces 9 are three in number, conseguently two of the said braces are diagona ly disposed with relation to each other, while the third brace 9 is located intermediate of the said diagonally disposed braces. The ring 7 is provided with four lugs 8, where by any one of the braces 9 may be shifted from one lug 8 to the other lug 8, the advantage of which will be hereinafter explained. The pulley-wheel 10 is journaled for rotation at the upper end of the mast 6. The boom 11 is pivotally connected with the upper end portion of the 1nast6, and the said boom con sists of the side bars or arms 12, which lie at opposite sides of the said mast 6 and are connected therewith by means of a pivot bolt 13. The opposite end portions of the said arms 12 are angularly disposed with relation to each other and are connected together at their un-.

der edges by the brace bars 13, so that the boom 11, as an entirety, has the appearance, and virtually is, in the form of a truss. The longer end portions of the arms 12 are connected together by a cross-bar 14, while the extremities of the longer ends of the said arms 12 are provided with the hinge members 15 to which is pivotally connected the cradle 16. The cradle 16 is made up of a series of tines 17, and a cross-bar 18 is attached to the upper edges of the said tines in the vicinity of the rear ends thereof. The frame 19 is erected upon the rear ends of the tines 17 and is connected with the cross-bar 18 by means of the braces 20.

The hinge members 15 are connected with the cross bar 18 in forming their attachment with the cradle 16. The pulley-wheel 21 is mounted at the under side of the cross-bar 14. The pulley-Wheels 22 are mounted at the shorter end portions of the arms 12 and are located between the said arms. The said pulley-wheels 22 are of sufficient weight to counterbalance the boom 11 and its attache ments as an entirety upon the mast 6; thus avoiding the necessity of employing additional weight for the purpose of counterbalanoing the said boom structure. The band 23 is attached to the lower end portion of the boom 6 and the ulley-block 24 is pivotally connected with t e said band 23. The pulleys 25 are journaled for rotation in the said block 24. The pulley 26 is mounted upon one of the sills 2, and the bell-crank lever 27 is fulcrumed upon the same sill. The said lever 27 is rovided with a handle end 28 and a crank en 29. The said crank end 29 occupies the same vertical plane as that occupied by the pulley 26. One end of the coil spring 30 is attached to the sill 2, and the other end of the said spring is attached to the bell-crank 29 of the lever 27. The said s ring is under tension with a tendency to hol the said, bellcrank against the periphery of the pulley 26. The hoisting cable 31 is attached at one end to the lower end portion of the mast 6, and from thence passes u I over one of the pulleys 22, thence down an under and around one of the pulleys 25, thence up and over the other pulley 22, thence down and behind and under the other pulley 25, thence under the pulley 26 from which point it extends out in a horizontal run to which a draft animal or animals may be attached. The band 32 is attached to and surrounds the lower end portion of the mast 6, and is provided with the parallel spaced end extremities 33. The latch-bar 34 is pivotally connected with the band 32 or one of its extremities 33. The lug 35 is mounted upon one of the extremities 33 of the band 32 and lies transversely across the path of movement of the latch-bar 34. The cable 36 is attached at one end to the free end of the latch-bar 34, thence the said cable passes over the pulley 10 at the top of the mast 6, and thence under the pulley 21 lying beneath the cross-bar 14, and is attached to the post 37, which in turn is supported upon the vertically disposed frame 19, located at the back of the cradle 16. The lever 38 is pivotally mounted between the parallel extremities 33 of the band 32, and is rovided at its lower edge with an inclined ug or projection 39, which lies transversely across the path of movement of the latchbar 34.

In operation the stacker works as follows the drawings.

'mast, the only weight to be lifted is that of the load placed upon the cradle 16. hen the draft animal arrives at the en d of the run,

or the longer end portion of the boom 11 is raised sufliciently, the animal is stopped, and the bell-crank lever 27, in response to the tension of the spring 30, will swing the bellcrank end 29 against the under side of the horizontal run of the hoisting cable 31 and impinge the same against the periphery of the pulley 26, so that the weight of the material resting upon the cradle 1.6 is automatically taken from the draft animal, and

the said cradle is held in an elevated position. As the said cradle swings from a lowered to an elevated position it remains substantially horizontal for the reason that the cable 36 which is connected with the latchbar 34 at one end and the said cradle at its other end and passes over the pulley 10 mounted at the upper end of the mast6, acquires a certain amount of slack as the longer end of the arm 12 forming portions of the mast 11 elevates. This is due to the fact that thepivot 13 is located at a point below the pulley 10; consequently as the longer ends of the said arm 12 move in an upward direction, they approach the said pulley 10 and when the said arms arrive at the highest point of their movement, the cradle 16 will be substantially in the position as illustrated in the heavy lines in Fig. 2 of When it is desired to permit the said cradle 16 to swing to a dumping position an operator grasps the lever 38 and moves the same in an upward direction. This brings the lug 39 in contact with the inner edge of the draft bar 34, and forces the same laterally out from under the lug 35, carried by one of the extremities 33 of the band 32. Thus the end portion of the said latch-bar 34 is free to swing, and, in response to the weight carried by the cradle 16, the said latch-bar 34 swings vertically, and the said cradle 16 moves to a dumping position as illustrated by the dotted lines in Fig. 2 of the drawings. It is also obvious that when the lever 38 is swung into alinement with the extremities 33 of the band 32, that the mechanism last above mentioned as an entirety constitutes a lever mechanism which may be used for swinging or rotating the mast 6 upon its vertical axis. Thus it will be seen that the load may be placed upon the cradle 16 at one point and as it is being elevated may be swung around and deposited at a desired point. The parts of the stacker are so arranged that the cradle 16 may describe substantially a semi-circle horizontally as it is being elevated or when it is elevated at any point.

By adjusting the braces 19 the parts may be so arranged that the cradle may be swung in either direction from right to left or vice versa, as desired.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A stacker comprising a mast, a boom pivotally connected with the said. mast in the vicinity of the upper end thereof, a cradle pivoted to the boom combined pulley wheels and weights mounted upon the boom at the end opposite thereof upon which the said cradle is mounted, a cable connected at one end with the cradle and passing over the top of the boom and being connected at its other end with the lower portion of the mast, a hoisting cable attached at one end to the lower end portion of the mast and passing around the said weighted pulleys upon the end of the boom, a block having pulleys around which the intermediate portions of the said. hoisting cable pass, and means for temporarily holding the said hoisting cable against movement in response to weight car ried by the said cradle.

2. A stacker comprising a mast, a boom pivotally connected thereto and consisting of side bars which lie at opposite sides of the mast and which are pivotally connected therewith, saidside-bars having end portions which are disposed at angles to each other, brace bars located under the angularly disposed portions of the side bars, a cradle located at the longer end portions of the said arms, weight-pulleys located at the opposite ends of the said arms, means for raising and lowering the longer end of the boom and means for swinging the said cradle.

3. A stacker comprising a rotatable mast, a boom pivotally connected with the said mast in the vicinity of the upper end thereof, a cradle pivotally attached to one end of the boom, counterbalanced weight pulleys located at the opposite end of the said boom, a hoisting cable attached at one end to the lower end portion of the said mast andpassing around said counterbalanced weight pulleys, a block having pulleys located at the lower end portion of the said mast and around the pulleys of which the intermediate portions of the said hoisting cable pass, a lever mechanism mounted upon the lower end portion of the mast, a latch-bar carried by the said lever mechanism, means for locking the said latchbar against movement, means for releasing said latch-bar and a cable attached at one end to the latch-bar and passing over the upper end of the mast and being connected at its other end with the said cradle.

4. A stacker consisting of runners, sills connecting the opposite end portions of the said runners together, a bolster located upon the intermediate portions of the said runners, a socket mounted upon the upper side of the said bolster and having a depending spindle which is journaled within the bolster, a mast fitting at its lower end within the saidsocket, a ring surrounding the intermediate portion of the said mast and having depending lugs, braces attached at their upper ends to the lugs oi the said ring and being connected at their lower ends with the inner sides of the runners, a boom pivotally connected with the upper portion of the mast in the vicinity of the upper end thereof, a cradle pivoted to one end of the said boom, counterbalanced weight pulleys j ournaled for rotation at the opposite end 01 the said boom, a ring attached to the lower portion of the said mast, a block pivotally mounted upon said ring and having pulleys, a cable attached at one end to the lower end portion of the said mast and passing around the counterbalanced weight pulleys at the end of the boomand then around the pulleys carried by the said block, a pulley mounted upon one of the sills, and under which the horizontal run of the said hoisting cable passes, a bell crank rocker fulcrulned upon the said sill carr ing the last said pulley, said rocker having a crank extremity which is located in the same vertical plane with the said pulley, a spring connected at one end to the sill and at its opposite end to the bell-crank of the said rocker, and adapted to hold the said bellcrank towards the periphery of the said pulley, a band mounted upon the mast, said band having parallel extremities, one of which is Jrovided with a laterally disposed lug, a lever fulcrumed between the extremities of the band and having at its lower end a laterally disposed lug, a latch-bar pivoted to the said band and being adapted to swing at its outer end, a cable connected at one end with the cradle and passing over the upper end of the mast and being connected at its opposite end with the latch-bar, said latchbar when in locked position adapted to lie below the lugs carried by one of the extremities of the band, and a lug upon the lever adapted to force the said latch-bar laterally beyond the extremity mounted upon the first said lug.

in testimony that I claim the foregoing as my own, I have hereto atliXed my signature in the presence of two witnesses.

ROBERT T. DYE.

Witnesses S. M. BROWN, LOUIS W. LIBBY. 

